Masaaki Chiwa

1.1k citations

62 papers · 916 indexed · h-index 18

Co-authors: Kyoichi Otsuki Jun’ichiro Ide Hiroshi Sakugawa Atsushi Kume J.N. Cape Hikaru Komatsu Lucy J. Sheppard Tomonori Kume
Topics: Soil and Water Nutrient Dynamics (29 papers)Atmospheric chemistry and aerosols (15 papers)Hydrology and Watershed Management Studies (14 papers)
Cited by: Environmental Chemistry Soil Science Water Science and Technology
Journals: Journal of Geophysical Research Atmospheres The Science of The Total Environment Scientific Reports
Partner nations: Japan United Kingdom Iran

In The Last Decade

Masaaki Chiwa

59 papers receiving 882 citations

Peers

Countries citing papers authored by Masaaki Chiwa

Since Specialization

Citations

This map shows the geographic impact of Masaaki Chiwa's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Masaaki Chiwa with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masaaki Chiwa more than expected).

Fields of papers citing papers by Masaaki Chiwa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masaaki Chiwa. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Masaaki Chiwa. The network helps show where Masaaki Chiwa may publish in the future.

Co-authorship network of co-authors of Masaaki Chiwa

This figure shows the co-authorship network connecting the top 25 collaborators of Masaaki Chiwa. A scholar is included among the top collaborators of Masaaki Chiwa based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Masaaki Chiwa. Masaaki Chiwa is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Naturally grown understory vegetation after thinning reduces throughfall erosivity in Japanese coniferous plantations 2025 ·Journal of Agricultural Meteorology ·(unknown),Yuzhu Li,(unknown),Masaaki Chiwa,Kyoichi Otsuki	0
2	Stable isotopic evidence for the excess leaching of unprocessed atmospheric nitrate from forested catchments under high nitrogen saturation 2023 ·Biogeosciences ·(unknown),Urumu Tsunogai,Fumiko Nakagawa,(unknown),Masaaki Chiwa,Tamao Kasahara,(unknown)	4
3	Soil pH and divalent cations after clear-cutting on a Japanese cypress plantation 2022 ·Journal of Forest Research ·(unknown),(unknown),Jun’ichiro Ide,Masaaki Chiwa,Tsutomu Enoki,(unknown),Kyoichi Otsuki,Kuniyoshi Shimizu,Atsushi Kume	1
4	Comparison of spatial and temporal changes in riverine nitrate concentration from terrestrial basins to the sea between the 1980s and the 2000s in Japan: Impact of recent demographic shifts 2021 ·Environmental Pollution ·Hideaki Shibata,(unknown),(unknown),Sadao Eguchi,(unknown),Masaaki Chiwa,Naoyuki Yamashita	9
5	Differences in net primary production allocation and nitrogen use efficiency between Moso bamboo and Japanese cedar forests along a slope 2021 ·Journal of Forest Research ·(unknown),Ayumi Katayama,Tomonori Kume,Tsutomu Enoki,Masaaki Chiwa,Takuo Hishi	10
6	Nutrients exported from upland stream water enlarge perennial biomass crops 2021 ·Scientific Reports ·Masaaki Chiwa,Yasuhiro Utsumi,(unknown),Yuko Yasuda,(unknown),(unknown),(unknown),(unknown),(unknown),Kohei Yamauchi,(unknown),Tatsuro Ando,(unknown)	0
7	Nutrient deficiency promotes male-biased apparent sex ratios at the ramet level in the dioecious plant Myrica gale var. tomentosa in oligotrophic environments in bogs 2018 ·Journal of Plant Research ·(unknown),Kiyoshi Ishida,Masaaki Chiwa,Yoshitoshi Uehara,(unknown),Atsushi Kume	3
8	Long-term interactive effects of N addition with P and K availability on N status of Sphagnum 2018 ·Environmental Pollution ·Masaaki Chiwa,Lucy J. Sheppard,Ian D. Leith,Sarah R. Leeson,Y. Sim Tang,J.N. Cape	7
9	Sphagnum can ‘filter’ N deposition, but effects on the plant and pore water depend on the N form 2016 ·The Science of The Total Environment ·Masaaki Chiwa,Lucy J. Sheppard,Ian D. Leith,Sarah R. Leeson,Y. Sim Tang,J.N. Cape	20
10	Atmospheric Deposition and Interactions with Pinus pumila Regal Canopy on Mount Tateyama in the Northern Japanese Alps 2015 ·Arctic Antarctic and Alpine Research ·Yoshitoshi Uehara,Atsushi Kume,Masaaki Chiwa,(unknown),Jing Zhang,Koichi Watanabe	11
11	Sources of hydroxyl radical in headwater streams from nitrogen-saturated forest 2014 ·Chemosphere ·Masaaki Chiwa,(unknown),Kyoichi Otsuki,Hiroki Kodama,Tohru Miyajima,Kazuhiko Takeda,Hiroshi Sakugawa	7
12	Characteristics of Nitrogenous Air Pollutants at Urban and Suburban Forested Sites, Western Japan 2012 ·Water Air & Soil Pollution ·Masaaki Chiwa,(unknown),Kyoichi Otsuki,Hiroshi Sakugawa	2
13	Determining storm sampling requirements for improving precision of annual load estimates of nutrients from a small forested watershed 2011 ·Environmental Monitoring and Assessment ·Jun’ichiro Ide,Masaaki Chiwa,(unknown),(unknown),Yasushi Mori,Kyoichi Otsuki	18
14	Observation of Canopy Interception Loss in an Abandoned Coniferous Plantation. 2010 ·Journal of the Japanese Forest Society ·Yoshinori Shinohara,Jun’ichiro Ide,(unknown),Hikaru Komatsu,Tomonori Kume,Masaaki Chiwa,Kyoichi Otsuki	16
15	Hydrochemical characteristics of throughfall and stemflow in a Moso‐bamboo (Phyllostachys pubescens) forest 2010 ·Hydrological Processes ·Masaaki Chiwa,(unknown),Kyoichi Otsuki	16
16	Phosphorus Budgets in the Mountainous Watershed of a Plantation Forest of Japanese Cypress (Chamaecyparis obtusa) Considering Increased Concentrations of Stream Phosphorus in Storm Events 2008 ·JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES ·Jun’ichiro Ide,Masaaki Chiwa,Kyoichi Otsuki	5
17	Atmospheric concentrations of nitric acid, sulfur dioxide, particulate nitrate and particulate sulfate, and estimation of their dry deposition on the urban- and mountain-facing sides of Mt. Gokurakuji, Western Japan 2007 ·Environmental Monitoring and Assessment ·Masaaki Chiwa,Hiroaki Kondo,(unknown),Hiroshi Sakugawa	14
18	Throughfall chemistry and canopy interactions in a Sitka spruce plantation sprayed with six different simulated polluted mist treatments 2003 ·Environmental Pollution ·Masaaki Chiwa,Alan Crossley,Lucy J. Sheppard,Hiroshi Sakugawa,J.N. Cape	59
19	Concentrations of SO2, NOx and O3 and Their Diurnal Variation at Mt. Gokurakuji and Its Vicinity, Hiroshima Prefecture, Western Japan. 2002 ·NIPPON KAGAKU KAISHI ·Masaaki Chiwa,(unknown),(unknown),Takemitsu Arakaki,Hiroshi Sakugawa	4
20	Variation in CO2 assimilation rate induced by simulated dew waters with different sources of hydroxyl radical (·OH) on the needle surfaces of Japanese red pine (Pinus densiflora Sieb. et Zucc.) 2002 ·Environmental Pollution ·Tsuyoshi Kobayashi,(unknown),Takeshi Hirakawa,Mamoru Suzuki,Takayuki Miyake,Masaaki Chiwa,(unknown),Nozomu Hashimoto,Kanako Inoue,(unknown),(unknown),(unknown),(unknown),Atsushi Kume,T. Arakaki,Hiroshi Sakugawa	23

About Masaaki Chiwa

Masaaki Chiwa is a scholar working on Environmental Chemistry, Soil Science and Process Chemistry and Technology, having authored 62 papers that have together received 916 indexed citations. Recurring topics across this work include Soil and Water Nutrient Dynamics (29 papers), Atmospheric chemistry and aerosols (15 papers) and Hydrology and Watershed Management Studies (14 papers). The work is most often cited by research in Environmental Chemistry (318 citations), Soil Science (257 citations) and Water Science and Technology (259 citations). Masaaki Chiwa has collaborated with scholars based in Japan, United Kingdom and Iran. Frequent co-authors include Kyoichi Otsuki, Jun’ichiro Ide, Hiroshi Sakugawa, Atsushi Kume, J.N. Cape, Hikaru Komatsu, Lucy J. Sheppard, Tomonori Kume, Nobutake Nakatani and Alan Crossley. Their work appears in journals such as Journal of Geophysical Research Atmospheres, The Science of The Total Environment and Scientific Reports.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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